Applications Notes – Ultrasonic Filter Cleaning

Filters used to filter air, water and chemicals in industrial processes can cost thousands of dollars and more.  Some filters are intended to be renewable by cleaning.  Other filters, even some considered “disposable,” can be recovered for re-use using ultrasonic cleaning techniques. A filter, as we discussed in earlier blogs (search “filter”) is a device …

Ultrasonic Cleaning – More About Baskets and Fixtures

This blog is in response to recently received reader questions regarding the best designs for baskets and fixtures used in ultrasonic cleaning applications.  The blog Reader Questions – Baskets for Ultrasonic Cleaning addressed previous questions.  Today’s question concerns the use of metallic fasteners in the construction of baskets and fixtures to hold parts for ultrasonic cleaning. The …

Ultrasonics – Deburring – Fact or Fantasy?

Over the years I have had many hundred people approach me with potential applications for ultrasonic deburring.  There are many references to ultrasonic deburring in the literature going back decades in time so it’s not unlikely for the question to be asked.  In fact, ultrasonic deburring may have limited application but requires certain very special circumstances in order …

Sounds of Silence – Pulse Period and Duration

Today we are, again, going to bring ultrasonic sounds into the realm of human audibility by lowering the frequency to ones that most people with normal hearing can hear.  Several preceding blogs have discussed the effects of varying the pulse width and pulse period of an ultrasonic generator in an ultrasonic cleaning system.  If you’ve …

Ultrasonics – Pulse – More About Pulsed Ultrasonics

“Pulse” in ultrasonic terms simply means turning the ultrasonic energy on and off repeatedly in either a fixed or random pattern.  At first it seems this would would be counter-productive to the goal of maximizing the ultrasonic cleaning effect.  In fact, the blogs Ultrasonics – Ultrasonic Generators – What Is “Pulse” and Ultrasonics – Ultrasonic …